Docking

From Conservapedia

A docking station is a hardware device that one can plug a laptop into, that provides high-quality and high-bandwidth access to such things as hard-wired network connections, large external disk drives, larger display screens, better keyboards, etc. As laptops have become more powerful and self-sufficient, docking stations have become less common.

The act of moving an application, through "drag and drop", to the "dock" (taskbar) in MacOS is called "docking".